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Old 02-28-2012, 01:28 PM   #27 (permalink)
Diesel_Dave
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Join Date: May 2011
Location: Indiana
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White Whale - '07 Dodge Ram 2500 ST Quad Cab 2wd, short bed
Team Cummins
90 day: 37.68 mpg (US)
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High compression ratio does improve fuel economy. The advantage of lower compression ratio is that power density improves, that is to say you can get more power out of the same displacement engine. If you look at diesel racing engines they'll have low compression ratio, as will some other applications were fuel economy is less important than power output. Higher compression ratio increases peak cylinder pressures, thus the reduced power density.
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Diesel Dave

My version of energy storage is called "momentum".
My version of regenerative braking is called "bump starting".

1 Year Avg (Every Mile Traveled) = 47.8 mpg

BEST TANK: 2,009.6 mi on 35 gal (57.42 mpg): http://ecomodder.com/forum/showthrea...5-a-26259.html


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